Narcolepsy

"Actually, what's your problem, um? Did someone bullied you at school? If so, tell papa, papa will beat up those impudent children. It's good to bully this handsome and cute papa's son." Jangjun said, seriously. He even smacked a fist into the palm of his left hand.

Jangjun knew that his son was kind. In fact, even when Ryushin is belittled and bullied, Ryushin will remain silent. In fact, Ryushin is actually good at fighting like his grandfather. In fact, Ryushin has more fighting skills than Jangjun who always chooses to run away when he meets thugs. However, Jangjun didn't know the reason why his son was always silent when bullied.